/* ==========================================================================
   HEADER — topbar + navbar sticky + mega menú + menú móvil
   ========================================================================== */

.topbar {
  height: var(--topbar-h);
  background: var(--c-graphite-950);
  color: var(--c-steel-400);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--border-dark);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--space-md); }
.topbar__left { display: flex; align-items: center; gap: var(--space-md); }
.topbar__item { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.topbar__item svg { width: 13px; height: 13px; color: var(--c-blue-400); flex-shrink: 0; }
.topbar__item a:hover { color: var(--c-steel-100); }

.topbar__social { gap: 12px; }
.topbar__social-link { display: flex; align-items: center; }
.topbar__social-link svg { width: 14px; height: 14px; color: var(--c-blue-400); transition: color 0.15s ease; }
.topbar__social-link:hover svg { color: var(--c-steel-100); }
.topbar__right { display: flex; align-items: center; gap: var(--space-md); }
.topbar__wa { display: flex; align-items: center; gap: 6px; color: var(--c-steel-100); font-weight: 600; }
.topbar__wa svg { width: 14px; height: 14px; color: var(--c-whatsapp); }
@media (max-width: 880px) {
  .topbar__item--hide-sm { display: none; }
}
@media (max-width: 620px) { .topbar { display: none; } }

.site-header {
  position: sticky; top: 0; left: 0; right: 0; z-index: var(--z-header);
  background: linear-gradient(180deg, rgba(8,12,18,0.92) 0%, rgba(8,12,18,0.88) 100%);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(63,155,255,0.14);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 12px 30px rgba(0,0,0,0.25);
  transition: background var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.site-header::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-blue-500), transparent);
  opacity: .55;
}
.site-header.is-scrolled {
  background: linear-gradient(180deg, rgba(6,9,13,0.97) 0%, rgba(6,9,13,0.95) 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 16px 40px rgba(0,0,0,0.4);
  border-bottom-color: rgba(63,155,255,0.22);
}

.navbar {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h);
  transition: height var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled .navbar { height: var(--header-h-scrolled); }

.brand-lockup { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-lockup__divider { width: 1px; align-self: stretch; margin-block: 10px; background: linear-gradient(180deg, transparent, var(--border-dark-strong) 50%, transparent); flex-shrink: 0; }
.brand { display: flex; align-items: center; gap: 13px; color: #fff; min-width: 0; }
.brand__mark {
  width: 58px; height: 58px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: linear-gradient(155deg, rgba(63,155,255,0.18), rgba(63,155,255,0.02));
  border: 1px solid rgba(63,155,255,0.35);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.03) inset, 0 6px 16px rgba(20,101,196,0.18);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast), transform var(--dur-fast);
  overflow: hidden;
}
.brand__mark img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.brand:hover .brand__mark { border-color: rgba(63,155,255,0.6); box-shadow: 0 0 0 1px rgba(255,255,255,0.04) inset, 0 8px 20px rgba(20,101,196,0.3); transform: translateY(-1px); }
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: 0.01em; white-space: nowrap; }
.brand__sub { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--c-blue-300); font-weight: 600; margin-top: 4px; white-space: nowrap; }

@media (max-width: 420px) {
  .brand__mark { width: 44px; height: 44px; }
  .brand-lockup { gap: 10px; }
  .brand__name { font-size: 0.95rem; }
  .brand__sub { display: none; }
}

.nav-main { display: flex; align-items: center; gap: 2px; }
.nav-main__item { position: relative; }
.nav-main__link {
  position: relative;
  display: flex; align-items: center; gap: 6px;
  padding: 12px 17px; color: var(--c-steel-200);
  font-family: var(--font-heading); font-weight: 600; font-size: 0.875rem; letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
}
.nav-main__link::after {
  content: ""; position: absolute; left: 17px; right: 17px; bottom: 6px; height: 2px;
  background: var(--c-blue-400); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform var(--dur-fast) var(--ease-out);
}
.nav-main__link svg { width: 13px; height: 13px; transition: transform var(--dur-fast) var(--ease-out); }
.nav-main__link:hover, .nav-main__item.is-open .nav-main__link, .nav-main__link.is-active { color: #fff; background: rgba(255,255,255,0.07); }
.nav-main__link:hover::after, .nav-main__item.is-open .nav-main__link::after, .nav-main__link.is-active::after { transform: scaleX(1); }
.nav-main__link.is-active::after { background: var(--c-blue-400); box-shadow: 0 0 8px 1px rgba(63,155,255,.55); }
.nav-main__item.is-open .nav-main__link svg { transform: rotate(180deg); }

.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-actions .btn { padding: 13px 24px; }
.hamburger {
  display: none; width: 44px; height: 44px; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.08); color: #fff;
  transition: background var(--dur-fast), border-color var(--dur-fast);
}
.hamburger:hover { background: rgba(63,155,255,0.14); border-color: rgba(63,155,255,0.35); }
.hamburger span { display: block; width: 20px; height: 2px; background: currentColor; position: relative; }
.hamburger span::before, .hamburger span::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: currentColor; transition: transform var(--dur-fast); }
.hamburger span::before { top: -6px; }
.hamburger span::after { top: 6px; }

/* ---- Mega menú ---- */
.mega-menu {
  position: absolute; top: calc(100% + 1px); left: 50%; transform: translateX(-50%);
  width: min(920px, calc(100vw - 40px));
  background: var(--c-graphite-900);
  border: 1px solid var(--border-dark-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg);
  display: grid; grid-template-columns: 1.1fr 1.4fr 1fr; gap: var(--space-lg);
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateX(-50%) translateY(10px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
  z-index: var(--z-megamenu);
}
.nav-main__item.is-open .mega-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }

.mega-menu__col-title {
  font-family: var(--font-heading); font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--c-blue-300);
  margin-bottom: var(--space-sm);
}
.mega-menu__list { display: flex; flex-direction: column; gap: 2px; }
.mega-menu__link {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 9px 10px; border-radius: 8px; color: var(--c-steel-200);
  font-size: 0.9rem; font-weight: 500;
  transition: background var(--dur-fast), color var(--dur-fast), padding-left var(--dur-fast);
}
.mega-menu__link:hover { background: rgba(63,155,255,0.1); color: #fff; padding-left: 14px; }
.mega-menu__link svg { width: 13px; height: 13px; opacity: 0; transition: opacity var(--dur-fast); color: var(--c-blue-400); }
.mega-menu__link:hover svg { opacity: 1; }

.mega-menu__visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  background: linear-gradient(155deg, var(--c-graphite-800), var(--c-graphite-950));
  border: 1px solid var(--border-dark);
  padding: var(--space-md);
  display: flex; flex-direction: column; justify-content: space-between;
  min-height: 240px;
}
.mega-menu__visual-art { flex: 1; display: flex; align-items: center; justify-content: center; }
.mega-menu__visual-art svg { width: 100%; max-width: 150px; color: var(--c-blue-400); opacity: .85; }
.mega-menu__visual p { font-size: 0.82rem; color: var(--c-steel-400); margin-top: var(--space-sm); }
.mega-menu__cta {
  margin-top: var(--space-lg); padding-top: var(--space-md);
  border-top: 1px solid var(--border-dark);
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: space-between;
}

/* ---- Mobile menu fullscreen ---- */
.mobile-menu {
  position: fixed; inset: 0; z-index: var(--z-overlay);
  background: var(--c-graphite-950);
  display: flex; flex-direction: column;
  transform: translateY(-100%);
  transition: transform var(--dur-slow) var(--ease-in-out);
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateY(0); }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; padding: 18px var(--container-pad); border-bottom: 1px solid var(--border-dark); }
.mobile-menu__close { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; color: #fff; background: rgba(255,255,255,.06); border-radius: var(--radius-sm); }
.mobile-menu__body { padding: var(--space-lg) var(--container-pad); flex: 1; }
.mobile-menu__links { display: flex; flex-direction: column; }
.mobile-menu__links > li { border-bottom: 1px solid var(--border-dark); }
.mobile-menu__link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 4px; color: #fff; font-family: var(--font-display); font-size: 1.5rem; font-weight: 600;
  opacity: 0; transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.mobile-menu.is-open .mobile-menu__link { opacity: 1; transform: translateY(0); }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(1) .mobile-menu__link { transition-delay: .05s; }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(2) .mobile-menu__link { transition-delay: .1s; }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(3) .mobile-menu__link { transition-delay: .15s; }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(4) .mobile-menu__link { transition-delay: .2s; }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(5) .mobile-menu__link { transition-delay: .25s; }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(6) .mobile-menu__link { transition-delay: .3s; }
.mobile-menu.is-open .mobile-menu__links > li:nth-child(7) .mobile-menu__link { transition-delay: .35s; }
.mobile-menu__link svg { width: 18px; height: 18px; color: var(--c-blue-400); }
.mobile-menu__link.is-active { color: var(--c-blue-300); }
.mobile-menu__link.is-active::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c-blue-400); box-shadow: 0 0 8px 1px rgba(63,155,255,.6); margin-right: 10px; flex-shrink: 0; }
.mobile-menu__submenu { padding: 0 4px 14px; display: flex; flex-direction: column; gap: 4px; }
.mobile-menu__submenu a { color: var(--c-steel-400); font-size: 0.95rem; padding: 6px 0; }
.mobile-menu__cta { margin-top: var(--space-lg); }
.mobile-menu__contact { margin-top: var(--space-xl); padding-top: var(--space-lg); border-top: 1px solid var(--border-dark); display: flex; flex-direction: column; gap: 10px; color: var(--c-steel-400); font-size: 0.9rem; }
.mobile-menu__contact a { color: var(--c-steel-100); }

body.menu-open { overflow: hidden; }

@media (max-width: 1080px) {
  .nav-main { display: none; }
  .hamburger { display: flex; }
  .nav-actions .btn--primary span { display: none; }
}
@media (min-width: 1081px) {
  .mobile-menu { display: none; }
}